InChI=1/C17H14N2O2/c20-10-13-12-8-4-5-9-14(12)19-16(13)17(21)15(18-19)11-6-2-1-3-7-11/h1-9,13,20-21H,10H2/t13-/m0/s1 9F3B04E25BFF92C2